Electronic Design
Foil Resistors Feature Tolerance To 0.01%

Foil Resistors Feature Tolerance To 0.01%

The SMR3P series Bulk Metal Z-Foil resistors built using Z1-Foil technology feature a TCR of ± 0.5 ppm/°C maximum (+ 25°C to + 125°C), tolerances to 0.01%, load-life stability of ± 0.005% (50 ppm) after 10,000 hours with 0.6W at 70 °C, and a PCR of ± 5 ppm at a rated power of 0.6 W at + 70°C or 0.3W at +125°C. The components employ a molded package with flexible terminations that ensure minimal stress transference from the PCB due to load-induced temperature gradients and a difference in thermal coefficient of expansion. They can withstand unconventional environmental conditions including the extremely high temperatures and radiation-rich environments of down-hole oil exploration and well logging. Resistance values range from 100? to 15 k?. Pricing starts at $5.46 each. VISHAY INTERTECHNOLOGY, INC., Malvern, PA. (619) 336-0860.

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